Mainland China has strengthened its hold as the world's second-largest maker and user of high-performance computing servers, nearly 11 years since the market launched its first commercial supercomputer. The market's appetite for more powerful computing infrastructure took the spotlight, when the latest list of the world's 500 fastest supercomputers ranked the Chinese-developed Tianhe-2 system at No. 1. However, IBM, Hewlett-Packard and Dell, continue to be the most popular suppliers in China.